‘The New Washington’: Secretary of State Rex Tillerson

America’s foreign policy playbook changed the moment Donald J. Trump was elected, leaving State Department staff and their international counterparts wondering what the new era might look like. Under Secretary Rex Tillerson, they are still searching for answers.

Mr. Tillerson spoke with Jason Zengerle about how he factors the president’s tweets into foreign policy strategy and one of his most difficult diplomatic missions.

“I’ve had to build a relationship with President Trump because he didn’t know me,” Mr. Tillerson said. “I mean he certainly knew of me, just as I knew of him — but to understand how my thought processes work, for me to understand how his work, for me to understand how he makes decisions, because he makes decisions in a very different way than I do.”

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